CHESTER, N.S. - Nova Scotia's Environment Department has changed its boil water advisory for parts of Chester.

The department issued a statement Wednesday saying it has reduced the area that falls under the advisory.

The order remains in place for homes and businesses within the boundaries of the intersections of King and Pleasant streets to Water Lane, and the bottom of South Street to the shore.

The original advisory applied to homes and businesses between Central Street and Water Street, and from Union Street to South Street.

The department says a broken sewage line which has since been repaired caused bacteria to seep into a well on Pleasant Street.

To make sure water is safe, those in the affected area must boil their water for at least one minute before it can be used for drinking, preparing infant formula, making juices or ice cubes, washing fruits and vegetables, cooking or brushing teeth.